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x-google-dkim=pass (2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=QCJIIQiN; x-ptr=pass x-ptr-helo=mail.kernel.org x-ptr-lookup=mail.kernel.org; x-return-mx=pass smtp.domain=kernel.org smtp.result=pass smtp_is_org_domain=yes header.domain=kernel.org header.result=pass header_is_org_domain=yes; x-tls=pass version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128 X-Remote-Delivered-To: security@kernel.org DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8936621736 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=htejun@gmail.com X-Google-Smtp-Source: AG47ELsiG/KqXZTB53IxdzUGVGGjgzWqA5rimlOs91FtEp8auemIyGPgCHGF1f4aJ4vuXCgVU9mWjg== Sender: Tejun Heo Date: Mon, 19 Mar 2018 10:10:19 -0700 From: Tejun Heo To: torvalds@linux-foundation.org, jannh@google.com, paulmck@linux.vnet.ibm.com, bcrl@kvack.org, viro@zeniv.linux.org.uk, kent.overstreet@gmail.com Cc: security@kernel.org, linux-kernel@vger.kernel.org, kernel-team@fb.com Subject: Re: [PATCH 5/8] percpu_ref: Update doc to dissuade users from depending on internal RCU grace periods Message-ID: <20180319171019.GD519464@devbig577.frc2.facebook.com> References: <20180314194205.1651587-1-tj@kernel.org> <20180314194515.1661824-1-tj@kernel.org> <20180314194515.1661824-5-tj@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180314194515.1661824-5-tj@kernel.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On Wed, Mar 14, 2018 at 12:45:12PM -0700, Tejun Heo wrote: > This patch makes it clear that the grace periods are percpu_ref's > internal implementation detail and can't be depended upon by the > users. Applied to percpu/for-4.16-fixes. Thanks. -- tejun